Is dating a single mother with two kids by two different men bad?

I just started to date this girl she has two kids 10 and 2 and she says that both of the guys were horrible, the first dad she said was abusive and she had to leave him then he doesn't want to see his kid. The second dad she said is a narcissist and he is horrible, I have seen him come and get his kid and she talks very bad about both of them. Is she a victim here or is this going to be a pattern with her?
Is dating a single mother with two kids by two different men bad?
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